Monday, June 27, 2011

Great link for wireless interface descriptions

Hi Guys, I found this very useful link and thought i'd share, basically it talks about the different interfaces on a WLC and what they are used for, it even talks about an AP-Manager interface being required for Layer 3 LWAPP which I did not know!

Thursday, June 23, 2011

Saw this on latest IOS 15, very interesting!

!!By default, the following "voice service voip" !!
!!sub-command is enabled: !!
!! ip address trusted authenticate !!
!! !!
!!The command enables the ip address authentication !!
!!on incoming H.323 or SIP trunk calls for toll fraud !!
!!prevention supports. !!
!! !!
!!Please use "show ip address trusted list" command !!
!!to display a list of valid ip addresses for incoming !!
!!H.323 or SIP trunk calls. !!
!! !!
!!Additional valid ip addresses can be added via the !!
!!following command line: !!
!! voice service voip !!
!! ip address trusted list !!
!! ipv4 [] !!

Monday, June 20, 2011

A great way to copy files on cisco routers without FTP

So some of the readers of this blog might already know this little trick, and what's more some of you might be surprised I didn't know about this until recently! Again props to Alastair my coworker, he has given me some great tips so far!

We are going to use a putty program to copy a file to our flash (could be an IOS or whatever you like really) without having to use FTP, simply over SSH, this is super useful for those times when:

1. You don't have an FTP server handy
2. Your behind NAT so you can't just start an FTP server
3. Your behind a restrictive firewall

How do? Easy,

First, go to putty and download this:

Go to "PSCP.exe" and download it.

My recommendation is to put it in c:\windows\system32\ or somewhere else in your path, by doing this you can use when your in the command line at any path (it is a command line app)

Ok, next we need to add this simple command to your router:

PeterCCIE18371(config)#ip scp server enable

THE above command is the KEY command guys

Also, you will need to have aaa new-model enabled (you don't already? why not?) and make sure your AAA authorization network is OK, so for example:

aaa authorization network

You will also need to have SSH enabled, so make sure you have something like this under your VTY Lines:

line vty 0 15
exec-timeout 800 0
transport input telnet ssh

and make sure you have a crypto key generated

crypto key generate RSA modulus 1024

now with all that done, let's actually try a copy

go to a dos prompt and check this out:

Using keyboard-interactive authentication.
FILE.CSV | 0 kB | 0.7 kB/s | ETA: 00:00:00 | 100%

replace HOSTNAMEORIPHERE with your IP address and you will see how it all works.

So there you have it! easy way to copy without FTP! Great isn't it!


Sunday, June 19, 2011

How to get hookflash working and Bearer cap speech for video phones

Fantastic, thanks for that. Problem solved!

"timing hookflash-in 80" resulted in calls being disconnected when pressing R but I tried "timing hookflash-in 120 60" and now it works fine. I was trying increments of 100 at a time before.

voice-port 0/0/0:15

bearer cap speech


Thursday, June 16, 2011

6946 has a restriction

So, 6945's have a maximum of busy trigger 1, and a max number of calls as 2

Wednesday, June 15, 2011

Unity Connection doesnt come with CUWL as a CD? Oh yes it does

Hi Guys

this blog post is mostly for me just to remind me:

When i was recently doing an install, it appeared that there was no Cisco Unity Connection CD with my CUWL pak even though I had ordered Unity Connection

just use your Unified Communications CD, and to make it come up as an option in Vmware make sure you use the OVA template.

Tuesday, June 7, 2011

Two little ASA hints and tips

My coworker Alastair Holloway showed me these two

make ASA behave like a router when scrolling through multiple pages:
pager line 24

write all context config at once when working with multiple contexts
wr mem all